Since childhood, Misato was tightly controlled by her father, who trained her daily to straddle his face. Growing up in this twisted relationship, her mind and body became conditioned to accept a long-term incestuous bond with her father. Every time she returns home, she immediately straddles his face at the entrance, clamping his head tightly between her thighs while pressing his crotch against her nose, repeatedly giving him blowjobs and handjobs. Finally, she manages to spend some sweet moments with her boyfriend. However, her father catches them in the act and subjects the boyfriend to a cruel test of endurance. "Can you withstand being tormented by her big ass? If you fail, I'll drive you away," her father commands harshly. How long can her lover endure the oppressive face-sitting and crushing pressure of Misato's big ass?